5MPF

Structural Basis of Gene Regulation by the Grainyhead Transcription Factor Superfamily


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.918 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural basis of gene regulation by the Grainyhead/CP2 transcription factor family.

Ming, Q.Roske, Y.Schuetz, A.Walentin, K.Ibraimi, I.Schmidt-Ott, K.M.Heinemann, U.

(2018) Nucleic Acids Res. 46: 2082-2095

  • DOI: 10.1093/nar/gkx1299
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Grainyhead (Grh)/CP2 transcription factors are highly conserved in multicellular organisms as key regulators of epithelial differentiation, organ development and skin barrier formation. In addition, they have been implicated as being tumor suppressor ...

    Grainyhead (Grh)/CP2 transcription factors are highly conserved in multicellular organisms as key regulators of epithelial differentiation, organ development and skin barrier formation. In addition, they have been implicated as being tumor suppressors in a variety of human cancers. Despite their physiological importance, little is known about their structure and DNA binding mode. Here, we report the first structural study of mammalian Grh/CP2 factors. Crystal structures of the DNA-binding domains of grainyhead-like (Grhl) 1 and Grhl2 reveal a closely similar conformation with immunoglobulin-like core. Both share a common fold with the tumor suppressor p53, but differ in important structural features. The Grhl1 DNA-binding domain binds duplex DNA containing the consensus recognition element in a dimeric arrangement, supporting parsimonious target-sequence selection through two conserved arginine residues. We elucidate the molecular basis of a cancer-related mutation in Grhl1 involving one of these arginines, which completely abrogates DNA binding in biochemical assays and transcriptional activation of a reporter gene in a human cell line. Thus, our studies establish the structural basis of DNA target-site recognition by Grh transcription factors and reveal how tumor-associated mutations inactivate Grhl proteins. They may serve as points of departure for the structure-based development of Grh/CP2 inhibitors for therapeutic applications.


    Organizational Affiliation

    Macromolecular Structure and Interaction, Max Delbrück Center for Molecular Medicine, Robert-Rössle-Str. 10, 13125 Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Grainyhead-like protein 1 homolog
A, B
238Homo sapiensMutation(s): 0 
Gene Names: GRHL1 (LBP32, MGR, TFCP2L2)
Find proteins for Q9NZI5 (Homo sapiens)
Go to Gene View: GRHL1
Go to UniProtKB:  Q9NZI5
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*AP*AP*AP*AP*CP*CP*GP*GP*TP*TP*TP*T)-3')E,F12Homo sapiens
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.918 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.228 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 59.034α = 90.00
b = 59.034β = 90.00
c = 198.854γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata scaling
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-01-17
    Type: Initial release
  • Version 1.1: 2018-03-14
    Type: Database references